Yak 18T Flight Operations Manual
Page 32 of 82
Disclaimer: This manual is to be used as a reference only, it is based on translated Yak 18T Flight Operations
Manuals and has not been approved by the Yakovlev Design Bureau or any other authority.
Now that the engine has started, pay particular
and frequent attention to the engine and oil
temperatures and pressures and CHECK the following –
• that the undercarriage warning (three green indicators) lights
come on, and check the proper state of red lights by pressing
the test button
• that the elevator trimmer control (when the trimmer is in the
NEUTRAL position, a yellow/green indicator light TRIM
NEUTRAL on the panel is ON
• the state of electric instruments
(check whether the
pointers are SET to
their initial down
positions)
• the serviceability of the fuel level indicator, the total amount
of fuel in the tanks and fuel amount in the left and right tanks
separately
• note the amount of fuel that was added (if any) and compare
against what is now indicated
• the voltage of the airborne accumulator under load, to do it
cut in the ANE (AHO) circuit breaker on the panel for 10-15
seconds, press the voltmeter button-voltage value should be
at least 24V and is likely to stabilise at 27V-29V. The image
obviously shows 0
• prepare and check the flight-control and navigation equipment
and the radio instruments of the aircraft as well as the interior
cabin lighting facility, if night flights are to be performed
6.5. Engine Warm-up
• Warm-up the engine at the crankshaft speeds of 41%-48% until the oil temperature at
the engine inlet is increased. As fast as the oil temperature increases, accelerate the
engine up to 44%-48% in summer and 51% in winter time and perform the engine
warm-up at these conditions until temperature of at least 120°C of the cylinder heads is
reached and the oil temperature not less than 40°C at the engine inlet is obtained
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